ICL3245CB-T

Overview

The ICL3245CB-T is a low-power RS-232 transceiver manufactured by Intersil, now part of Renesas Electronics. It operates from a single +3V to +5.5V supply and supports data rates up to 1 Mbps. The device integrates three drivers and five receivers for full-duplex communication. Key electrical specifications include a maximum supply voltage of 5.5 V, a minimum of 3 V, and an operating supply current of 1 mA. It features enhanced automatic powerdown functionality and provides 15 kV ESD protection on all RS-232 lines. The component is rated for industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Enhanced automatic powerdown circuitry reduces power consumption during idle periods.
• Integrated charge pump generates required RS-232 voltage levels from a single low-voltage supply.
• High electrostatic discharge (ESD) immunity protects connected ports from damage.
• Single-supply operation simplifies design in battery-powered or low-voltage systems.

Applications

• Portable computers and notebook PCs requiring serial connectivity.
• Industrial control systems with RS-232 communication interfaces.
• Medical equipment utilizing serial data transmission.
• Point-of-sale (POS) terminals and handheld devices.

Procurement Notes

Verify the specific suffix 'CB' against official manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints, as variations exist within the ICL3245 family. Confirm RoHS compliance status through the latest datasheet revision. Cross-reference with Renesas Electronics for updated lifecycle and availability information.

Selection Notes

Select this component when designing systems requiring multiple receive channels alongside standard transmit capabilities. The 1 Mbps rate suits most legacy serial applications. Consider the SSOP-28 package constraints for board space. Verify that the 1 mA quiescent current meets system power budgets compared to higher-performance alternatives.

Part Context

This part belongs to the ICL3245 series of RS-232 transceivers designed for low-power applications. It shares functional similarities with other members like the ICL3245EIAZ-T but may differ in packaging or environmental ratings. The series is widely used in portable electronics where power efficiency and robust interface protection are critical requirements.

Replacement Considerations

Direct substitutes include the ICL3245EIAZ-T and ICL3245CAZ-T. Verify pinout compatibility and electrical parameters before substitution. Check if alternative packages such as SOIC-28 are acceptable for the target application.